Study on Toughening Poly(lactic acid) with Flexible Bio-based Polyester Containing Lactic Acid Units

Wen-xing Lv; Zhi-lin Ou; Yi Su; Jing Huang; Ting Li; Shi-bo Wang; Xu-hui Zhang; Wei-fu Dong

doi:10.11777/j.issn1000-3304.2026.26063

您当前的位置：

首页 >

文章列表页 >

Study on Toughening Poly(lactic acid) with Flexible Bio-based Polyester Containing Lactic Acid Units

更新时间：2026-06-29

- Study on Toughening Poly(lactic acid) with Flexible Bio-based Polyester Containing Lactic Acid Units
- Acta Polymerica Sinica Pages: 1-13(2026)
- 作者机构：
  
  1.江南大学化学与材料工程学院无锡 214122
  2.江苏中金玛泰医药包装有限公司连云港 222047
- 作者简介：
  
  Xu-hui Zhang, E-mail: xuhuizhang@jiangnan.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2026.26063
  CLC：
- CSTR：32057.14.GFZXB.2026.7600
- Received：26 February 2026，
  
  Accepted：31 March 2026，
  
  Online First：29 June 2026，
- 稿件说明：
移动端阅览
吕文星, 欧芝林, 苏毅, 黄晶, 李婷, 王世波, 张旭辉, 东为富. 含乳酸单元柔性生物基聚酯增韧聚乳酸的研究. 高分子学报, doi: 10.11777/j.issn1000-3304.2026.26063.

Lv, W. X.; Ou, Z. L.; Su, Y.; Huang, J.; Li, T.; Wang, S. B.; Zhang, X. H.; Dong, W. F. Study on toughening poly(lactic acid) with flexible bio-based polyester containing lactic acid units. Acta Polymerica Sinica (in Chinese), doi: 10.11777/j.issn1000-3304.2026.26063.
吕文星, 欧芝林, 苏毅, 黄晶, 李婷, 王世波, 张旭辉, 东为富. 含乳酸单元柔性生物基聚酯增韧聚乳酸的研究. 高分子学报, doi: 10.11777/j.issn1000-3304.2026.26063. DOI： CSTR： 32057.14.GFZXB.2026.7600.

Lv, W. X.; Ou, Z. L.; Su, Y.; Huang, J.; Li, T.; Wang, S. B.; Zhang, X. H.; Dong, W. F. Study on toughening poly(lactic acid) with flexible bio-based polyester containing lactic acid units. Acta Polymerica Sinica (in Chinese), doi: 10.11777/j.issn1000-3304.2026.26063. DOI： CSTR： 32057.14.GFZXB.2026.7600.

摘要

由于原料可再生、可生物降解等诸多优点，聚乳酸(PLA)材料受到广泛关注，但韧性差的问题严重限制其实际应用. 传统增韧方法存在引入石油基组分、增韧效率差或者生物降解性变差等问题. 本研究设计合成了含乳酸单元、低玻璃化转变温度(

)且低分子量的生物基聚酯l-BPE

，通过熔融共混制备PLA/l-BPE

共混物，系统研究了聚乳酸共混物的结构、力学性能、加工性能及降解行为. 结果表明，添加15 phr l-BPE

LA20

的共混物断裂伸长率达(609.5±23.5)%，冲击强度达(39.5±1.6) kJ/m

，实现PLA的增韧改性. 增韧机理为l-BPE

LA20

引发的多重微裂纹机制. 同时，该共混物的熔体流动速率可达12.8 g/10min，可通过3D打印成型为复杂结构制品. 模拟堆肥降解实现显示，共混物30天接近完全降解，而纯PLA

残留明显. 本研究为开发全生物基、高韧且快速降解的PLA材料提供了新策略，将助力环境友好PLA材料的实际应用.

Abstract

Poly(lactic acid) (PLA) has attracted extensive attention owing to its renewable raw materials

biodegradability and many other advantages. However

its poor toughness severely limits its practical application. Traditional toughening methods suffer from problems such as the introduction of petroleum-based components

low toughening efficiency

or deteriorated biodegradability. In this study

a bio-based polyester l-BPE

containing lactic acid units

with low glass transition temperature (

) and low molecular weight

was designed and synthesized. PLA/l-BPE

blends were prepared

via

melt blending

and the struture

mechanical properties

processing properties and degradation behavior of the PLA blends were systematically investigated. The results showed that the blend with 15 phr l-BPE

LA20

exhibited an elongation at break of (609.5±23.5)% and a notched impact strength of (39.5±1.6) kJ/m

achieving super-tough modification of PLA. The

toughening mechanism was attributed to the multiple microcracking mechanism induced by l-BPE

LA20

. Meanwhile

the melt flow rate of the blend reached 12.8 g/10min

enabling 3D printing into products with complex structures. Simulated composting degradation tests revealed that the blend was almost completely degraded within 30 days

while obvious residues remained for neat PLA. This study provides a novel strategy for developing fully bio-based

high-toughness and rapidly degradable PLA materials

which will promote the practical application of environmentally friendly PLA materials.

关键词

Keywords

references

Zhu M. Y. ; Lligadas G. ; Hatton F. L. ; Miyake G. ; Buchard A. Introduction to "Make polymers sustainable, why and how? ". Green Chem. , 2026 , 28 ( 1 ), 17 - 20 . doi: 10.1039/d5gc90226f http://dx.doi.org/10.1039/d5gc90226f

O'Dea R. M. ; Willie J. A. ; Epps T. H. III . 100th anniversary of macromolecular science viewpoint : polymers from lignocellulosic biomass. current challenges and future opportunities. ACS Macro Lett., 2020 , 9 ( 4 ), 476 - 493 . doi: 10.1021/acsmacrolett.0c00024 http://dx.doi.org/10.1021/acsmacrolett.0c00024

梁孝林 , 闻杰 , 杨雯迪 , 刘文毅 , 施冬健 , 陈明清 . PLA/Lignin-g-polyester生物基复合材料的制备及聚酯链段结构对性能的影响研究 . 高分子学报 , 2019 , 50 ( 2 ), 147 - 159 . doi: 10.11777/j.issn1000-3304.2018.18176 http://dx.doi.org/10.11777/j.issn1000-3304.2018.18176

朱建 , 陈慧 , 卢凯 , 刘宏生 , 余龙 . 淀粉基生物可降解材料的研究新进展 . 高分子学报 , 2020 , 51 ( 9 ), 983 - 995 . doi: 10.11777/j.issn1000-3304.2020.20089 http://dx.doi.org/10.11777/j.issn1000-3304.2020.20089

Reshma C. S. ; Remya S. ; Bindu J. A review of exploring the synthesis , properties, and diverse applications of poly lactic acid with a focus on food packaging application. Int. J. Biol. Macromol., 2024 , 283 , 137905 . doi: 10.1016/j.ijbiomac.2024.137905 http://dx.doi.org/10.1016/j.ijbiomac.2024.137905

Ji R. R. ; Mo F. ; Liang L. W. ; Tian C. ; Dong S. X. ; Deng C. ; Wu H. ; Zhou L. ; Zhao X. P. Biodegradable polylactic acid (PLA) copolymer materials: structural design , synthesis strategy, the relationship between structure and performance, industrial application. Chem. Eng. J., 2025 , 524 , 169602 . doi: 10.1016/j.cej.2025.169602 http://dx.doi.org/10.1016/j.cej.2025.169602

Mou L. Y. ; Li J. L. ; Lu Y. ; Li G. P. ; Li J. Polylactic acid: a future universal biobased polymer with multifunctional performance: from monomer synthesis, and processing to applications: a review . J. Hazard. Mater. Adv. , 2025 , 18 , 100757 . doi: 10.1016/j.hazadv.2025.100757 http://dx.doi.org/10.1016/j.hazadv.2025.100757

Matumba K. I. ; Mokhena T. C. ; Ojijo V. ; Sadiku E. R. ; Ray S. S. Morphological characteristics, properties, and applications of polylactide/poly( ε -caprolactone) blends and their composites: a review . Macromol. Mater. Eng. , 2024 , 309 ( 8 ), 2400056 . doi: 10.1002/mame.202400056 http://dx.doi.org/10.1002/mame.202400056

Park Y. ; Lee J. Comparison of recently developed toughening strategies for polylactic acid blends . J. Ind. Eng. Chem. , 2023 , 125 , 50 - 57 . doi: 10.1016/j.jiec.2023.05.020 http://dx.doi.org/10.1016/j.jiec.2023.05.020

Shahroodi Z. ; Momeni V. ; Moshkriz A. ; Rajabifar N. ; Darvishi R. Mechanical and morphological perspectives on PLA-based thermoplastic vulcanizates (TPVs): a brief review . Macromol. Mater. Eng. , 2025 , 310 ( 2 ), 2400209 . doi: 10.1002/mame.202400209 http://dx.doi.org/10.1002/mame.202400209

Jiang M. F. ; Qin J. C. ; Liu J. W. ; Deng Z. Y. ; Zou H. ; Qiu B. W. Progress in toughening and functionalizing poly(lactic acid) composites with two-dimensional layered nanomaterials . ACS Appl. Mater. Interfaces , 2025 , 17 ( 28 ), 39900 - 39924 . doi: 10.1021/acsami.5c09794 http://dx.doi.org/10.1021/acsami.5c09794

Shahdan D. ; Rosli N. A. ; Chen R. S. ; Ahmad S. ; Gan S. Strategies for strengthening toughened poly(lactic acid) blend via natural reinforcement with enhanced biodegradability: a review . Int. J. Biol. Macromol. , 2023 , 251 , 126214 . doi: 10.1016/j.ijbiomac.2023.126214 http://dx.doi.org/10.1016/j.ijbiomac.2023.126214

De Bruyne A. ; Gómez K. C. ; O'Rourke G. ; Denayer M. ; Vekeman J. ; De Proft F. ; Stuyck W. ; Leinders J. ; Van Puyvelde P. ; De Vos D. New tricarboxylate plasticizers for use in polylactic acid: synthesis , thermal behavior, mechanical properties and durability. J. Polym. Environ., 2024 , 32 ( 9 ), 4483 - 4495 . doi: 10.1007/s10924-024-03254-0 http://dx.doi.org/10.1007/s10924-024-03254-0

Dunbar M. M. ; Stolp L. J. ; Kodali D. R. Soybean oil fatty acid alkyl ester estolides to enhance the functionality of poly(lactic) acid . J. Am. Oil Chem. Soc. , 2025 , 102 ( 5 ), 855 - 869 . doi: 10.1002/aocs.12923 http://dx.doi.org/10.1002/aocs.12923

Li X. ; Wang X. Y. ; Liu Y. F. ; Zhang X. H. ; Huang J. ; Li T. ; Wang Y. ; Wang S. B. ; Dong W. F. Achieving balanced stiffness and toughness of plasticized polymer via integrating plasticization and stress concentration-induced plastic deformation . Polymer , 2025 , 332 , 128588 . doi: 10.1016/j.polymer.2025.128588 http://dx.doi.org/10.1016/j.polymer.2025.128588

Xing C. ; Matuana L. M. Epoxidized soybean oil-plasticized poly(lactic acid) films performance as impacted by storage . J. Appl. Polym. Sci. , 2016 , 133 ( 12 ), 43201 . doi: 10.1002/app.43201 http://dx.doi.org/10.1002/app.43201

Yang R. ; Cai C. Y. ; Chen Z. F. ; Zou G. X. ; Li J. C. The effect of dynamic vulcanization on the morphology and biodegradability of super toughened poly(lactic acid)/unsaturated poly(ether-ester) blends . Int. J. Biol. Macromol. , 2023 , 253 , 126790 . doi: 10.1016/j.ijbiomac.2023.126790 http://dx.doi.org/10.1016/j.ijbiomac.2023.126790

Yang R. ; Cao H. W. ; Zhang P. L. ; Chen L. ; Zou G. X. ; Zhang X. ; Li J. C. Highly toughened and heat-resistant poly(lactic acid) with balanced strength using an unsaturated liquid crystalline polyester via dynamic vulcanization . ACS Appl. Polym. Mater. , 2021 , 3 ( 1 ), 299 - 309 . doi: 10.1021/acsapm.0c01095 http://dx.doi.org/10.1021/acsapm.0c01095

Kaewpea S. ; Touncharoensri N. ; Pinthong T. ; Suttaphakdee P. ; Boupan M. ; Boonmee T. ; Ross G. ; Jantanasakulwong K. ; Rachtanapun P. ; Mahasaranon S. ; Mikeš P. ; Ross S. Impact of structural differences between PCL and PBS on the performance and characteristics of PLA/PCL/CAB and PLA/PBS/CAB melted-ternary blends with hemp hurd as a sustainable green filler . Polym. Eng. Sci. , 2025 , 65 ( 8 ), 3975 - 3987 . doi: 10.1002/pen.27262 http://dx.doi.org/10.1002/pen.27262

夏明凤 , 杨月 , 付国良 , 吴宁晶 . 高性能超韧聚乳酸共混物的研究进展 . 高分子材料科学与工程 , 2018 , 34 ( 10 ), 178 - 183 . doi: 10.16865/j.cnki.1000-7555.2018.10.030 http://dx.doi.org/10.16865/j.cnki.1000-7555.2018.10.030

吴正贵 , 董新一 , 东为富 . 环氧化淀粉基核壳纳米粒子增韧聚乳酸的研究 . 高分子学报 , 2021 , 52 ( 7 ), 734 - 740 . doi: 10.11777/j.issn1000-3304.2020.20274 http://dx.doi.org/10.11777/j.issn1000-3304.2020.20274

Leroy A. ; Pinese C. ; Bony C. ; Garric X. ; Noël D. ; Nottelet B. ; Coudane J. Investigation on the properties of linear PLA-poloxamer and star PLA-poloxamine copolymers for temporary biomedical applications . Mater. Sci. Eng. C , 2013 , 33 ( 7 ), 4133 - 4139 . doi: 10.1016/j.msec.2013.06.001 http://dx.doi.org/10.1016/j.msec.2013.06.001

Kwon M. K. ; Lee Y. J. ; Lee S. G. ; Kim S. G. ; Lee S. J. Synthesis of block copolymers through melt polymerization for compatibilizing PLA/PBAT blends . J. Polym. Environ. , 2025 , 33 ( 12 ), 5163 - 5179 . doi: 10.1007/s10924-025-03692-4 http://dx.doi.org/10.1007/s10924-025-03692-4

Wi J. ; Choi J. ; Lee S. H. PLA-based biodegradable polymer from synthesis to the application . Polymers , 2026 , 18 ( 1 ), 121 . doi: 10.3390/polym18010121 http://dx.doi.org/10.3390/polym18010121

Rodríguez Hernández B. ; Lieske A. Widening the application range of PLA-based thermoplastic materials through the synthesis of PLA-polyether block copolymers: thermal , tensile, and rheological properties. Macromol. Mater. Eng., 2024 , 309 ( 3 ), 2300309 . doi: 10.1002/mame.202300309 http://dx.doi.org/10.1002/mame.202300309

Mazidi M. M. ; Arezoumand S. ; Zare L. Research progress in fully biorenewable tough blends of polylactide and green plasticizers . Int. J. Biol. Macromol. , 2024 , 279 , 135345 . doi: 10.1016/j.ijbiomac.2024.135345 http://dx.doi.org/10.1016/j.ijbiomac.2024.135345

Huang N. K. ; Wang F. ; Zhang R. H. ; Cao Z. L. ; Sun W. ; Ma Y. T. ; Tan J. H. ; Zhu X. B. Biodegradable hydrogenated dimer acid-based plasticizers for PLA with excellent plasticization, thermal stability and gas resistance . Molecules , 2024 , 29 ( 11 ), 2526 . doi: 10.3390/molecules29112526 http://dx.doi.org/10.3390/molecules29112526

Sun S. Y. ; Weng Y. X. ; Zhang C. L. Recent advancements in bio-based plasticizers for polylactic acid (PLA): a review . Polym. Test. , 2024 , 140 , 108603 . doi: 10.1016/j.polymertesting.2024.108603 http://dx.doi.org/10.1016/j.polymertesting.2024.108603

Pinaeva L. G. ; Noskov A. S. Biodegradable biopolymers: Real impact to environment pollution . Sci. Total Environ. , 2024 , 947 , 174445 . doi: 10.1016/j.scitotenv.2024.174445 http://dx.doi.org/10.1016/j.scitotenv.2024.174445

张洁 , 吴德峰 , 周卫东 , 张明 . 聚乳酸/乙烯-醋酸乙烯酯共聚物共混物的形态与黏弹行为 . 高分子学报 , 2011 , ( 2 ), 139 - 144 .

Patwa R. ; Kumar A. ; Katiyar V. Crystallization kinetics , morphology, and hydrolytic degradation of novel bio-based poly(lactic acid)/crystalline silk nano-discs nanobiocomposites. J. Appl. Polym. Sci., 2018 , 135 ( 33 ), 46590 . doi: 10.1002/app.46590 http://dx.doi.org/10.1002/app.46590

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Functionalized Imidazolium-based Ionomers as Effective Toughening Agents for Poly(lactic acid)

Toughening of Poly(lactic acid) by Epoxy Functionalized Core-Shell Starch-based Nanoparticles

Flame Retardant and Toughening Modification of Poly(lactic acid) with Phenylhypophosphate Ionomer/Ammonium Polyphosphate

Research Progress in Polymers for Humanoid Robots

Theoretical Study on Stabilizing Face-centered Cubic Spheres via AB/B Binary Blends

Related Author

Hang Wang

Hao-dong Hu

Xiang-jian Chen

Li Pan

Kun-yu Zhang

Yue-sheng Li

Zheng-gui Wu

Xin-yi Dong

Related Institution

School of Chemical Engineering and Technology

Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350)

Collaborative Innovation Center of Chemical Science and Engineering

College of Chemistry, Sichuan University

Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University

AI问答

Postal code：100190
Tel：010-62588927 Email：gfzxb@iccas.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备05002797号-8 京公网安备11010802046899号
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰